Across

Cartesian sum?	IAM
Quran keeper	IMAM
Spiff (up)	SNAZZ
Molecule in some modern vaccines	RNA
Impressive diving score	NINE
Chachi's "Happy Days" sweetheart	JOANIE
"Which is a big deal, considering!"	ANDTHATSSAYINGALOT
Line	QUEUE
Maker of the Split Decision Breakfast	IHOP
Damsel	LASS
Def Jam, for DMX	LABEL
Spa day sounds	AAHS
Contest for millions on the West Coast	CALIFORNIALOTTO
Sierra Nevada's Dankful, e.g., in brief	IPA
It's a good look	SCAN
It's a bad look	SNEER
Tear-stained, perhaps	DAMP
Landscaping tool	EDGER
Part of a healing process	SCAB
Common refrain in pre-K circles	EIEIO
Father of Norway's King Harald	OLAV
Royal Navy inits.	HMS
Popular skin moisturizer	ALOEVERALOTION
Family man	PAPA
"El ___ de los Anillos" (translation of a Tolkien title)	SENOR
Take off fast, with "out"	PEEL
Word with shoe or cap	SNOW
Floated for fun, in a way	TUBED
"So many layers here" … or a hint to the circled squares	ITSALOTTOUNPACK
A big hit might break it	TOPTEN
Often-pickled pods	OKRA
One who may be out of the habit	NUN
Result of an architect's winging it?	ANNEX
Big wheel's place	HELM
Word with clean or rot	DRY

Down

Setting for Operation Red Dawn	IRAQ
Void	ANNUL
Appeared briefly	MADEACAMEO
How many salsa dancers dance	INHEELS
God-knows-where, casually	MIA
Challenging	ANTI
Go together nicely	MESH
Miso base	SOY
Some spots that need polish	NAILSALONS
Actress Gunn	ANNA
Veers sharply	ZIGS
Extremist group	ZEALOTS
"Homeland" of the monsters Mothra and Gamera	JAPAN
Big band staple	TUBA
Take off	SOAR
Pet peeves?	LICE
Introductory remarks	HIS
Everybody's doing it	FAD
Like a blocked penalty kick, in soccer	ONGOAL
Group putting out electronic music	TECHNOBAND
Group often told to "Go!"	TEAM
Eyes, poetically	ORBS
Starting point for a plan	IDEA
Beach mold	PAIL
Quiche base	PIEPLATE
Grp. with the 1977 hit double album "Out of the Blue"	ELO
"Oh, fudge!"	RATS
Fertility clinic donations	OVA
World's largest producer of black pepper	VIETNAM
Printing giant	EPSON
Go off	RANT
"Get ___" (2014 James Brown biopic)	ONUP
Come back	RECUR
Pocket stuffed with tabbouleh, maybe	PITA
Windsor Castle neighbor	ETON
Presenter of many games	ESPN
Tweeter's "That said …"	OTOH
Socially "with it"	WOKE
Fashion house with a Manhattan HQ	DKNY
First name in DC Comics villainy	LEX
Certain link	URL